.stopWatch{
    border:1px dashed coral;
    width: 200px;
    height: 300px;
    text-align: center;
    padding: 5px 0 0;
}
.stopWatch div{
    border: 1px solid greenyellow;
    width: 180px;
    height: 215px;
    margin:5px auto;
    overflow-y: scroll;
}
.stopWatch div span{
    color:cornflowerblue;
}
.stopWatch b{
    font-size: 30px;
}